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Journal Articles

Identification for Sucker-Rod Pumping System’s Damping Coefficients Based on Chain Code Method of Pattern Recognition

Hongzhao Liu, Baixi Liu, Daning Yuan, Jianhua Rao
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. August 2007, 129(4): 434–440.
https://doi.org/10.1115/1.2748464
Published Online: April 9, 2007
...Hongzhao Liu; Baixi Liu; Daning Yuan; Jianhua Rao In this paper, a method for identifying the damping coefficients of a directional well sucker-rod pumping system is put forward by means of the chain code method of pattern recognition. The 24-directional chain code is provided to encode...
View Article titled, Identification for Sucker-Rod <span class="search-highlight">Pumping</span> System’s Damping Coefficients Based on Chain Code Method of Pattern Recognition
Open the PDF for Identification for Sucker-Rod <span class="search-highlight">Pumping</span> System’s Damping Coefficients Based on Chain Code Method of Pattern Recognition in another window
Topics: Chain, Coulombs, Damping, Dynamometers, Pattern recognition, Shapes, Fourier series, Simulation, Friction
Journal Articles

The Effects of Converging and Diverging Axial Taper on the Rotordynamic Coefficients of Liquid Annular Pressure Seals: Theory Versus Experiment

W. Todd Lindsey, Dara W. Childs, Jordan Professorship of Mechanical Engineering
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Papers
J. Vib. Acoust. April 2000, 122(2): 126–131.
https://doi.org/10.1115/1.568457
Published Online: November 1, 1995
... OF VIBRATION AND ACOUSTICS . Manuscript received November 1995; Associate Technical Editor: C. Pierre. 01 November 1995 pumps turbulence damping stators rotors elastic deformation seals (stoppers) Annular seals are used in centrifugal pumps to reduce the leakage through rotor...
View Article titled, The Effects of Converging and Diverging Axial Taper on the Rotordynamic Coefficients of Liquid Annular Pressure Seals: Theory Versus Experiment
Open the PDF for The Effects of Converging and Diverging Axial Taper on the Rotordynamic Coefficients of Liquid Annular Pressure Seals: Theory Versus Experiment in another window
Topics: Damping, Leakage, Pressure, Rotors, Stiffness, Whirls, Turbulence, Stators, Clearances (Engineering)